Hey Wavey , its a 'Military' spec B&L it will be a very nice lense for that price , old does not necessarily mean bad as lots of people today seen to think .
If I still had my engineering business I would jump at this as Lewis says , but sadly ,, no .
Brian.
Quote:
Originally Posted by Wavytone
If I was looking for a large objective I'd be looking for something more modern - Better glass, antireflection coated, and faster focal ratio. Starting with these gems http://www.professional-telescopes.n...OS-Apochromats and from a reputable maker.
I wouldn't be taking a punt on an old uncoated achro objective with no credible documentation concerning its quality, that big. |